OPA827
www.ti.com ..................................................................................................................................... SBOS376E–NOVEMBER 2006–REVISED SEPTEMBER 2008
Low-Noise, High-Precision, JFET-Input
OPERATIONAL AMPLIFIER
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FEATURES
DESCRIPTION
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INPUT VOLTAGE NOISE DENSITY:
The OPA827 series of JFET operational amplifiers
combine outstanding dc precision with excellent ac
performance. These amplifiers offer low offset voltage
(150µV, max), very low drift over temperature
(1.5µV/°C, typ), low bias current (15pA, typ), and very
low 0.1Hz to 10Hz noise (250nVPP, typ). The device
operates over a wide supply voltage range, ±4V to
±18V on a low supply current (4.8mA/Ch, typ).
xx4nV/√Hz at 1kHz
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INPUT VOLTAGE NOISE:
xx0.1Hz to 10Hz: 250nVPP
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INPUT BIAS CURRENT: 15pA
INPUT OFFSET VOLTAGE: 150µV (max)
INPUT OFFSET DRIFT: 1.5µV/°C
GAIN BANDWIDTH: 22MHz
Excellent ac characteristics, such as a 22MHz gain
bandwidth product (GBW), a slew rate of 28V/µs, and
precision dc characteristics make the OPA827 series
well-suited for a wide range of applications including
16-bit to 18-bit mixed signal systems, transimpedance
(I/V-conversion) amplifiers, filters, precision ±10V
front ends, and professional audio applications.
The OPA827 is available in both SO-8 and MSOP-8(1)
surface-mount packages, and is specified from –40°C
to +125°C.
SLEW RATE: 28V/µs
QUIESCENT CURRENT: 4.8mA/Ch
WIDE SUPPLY RANGE: ±4V to ±18V
PACKAGES: SO-8 and MSOP-8(1)
MSOP-8 (DGK) package is product preview.
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APPLICATIONS
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ADC DRIVERS
DAC OUTPUT BUFFERS
TEST EQUIPMENT
MEDICAL EQUIPMENT
PLL FILTERS
SEISMIC APPLICATIONS
TRANSIMPEDANCE AMPLIFIERS
INTEGRATORS
ACTIVE FILTERS
INPUT VOLTAGE NOISE DENSITY
vs FREQUENCY
0.1Hz to 10Hz NOISE
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10
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VS = ±18V
0.1
1
10
100
1k
10k
Time (1s/div)
Frequency (Hz)
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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UNLESS OTHERWISE NOTED this document contains
PRODUCTION DATA information current as of publication date.
Products conform to specifications per the terms of Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006–2008, Texas Instruments Incorporated